Again, James Toney is the exception and not the rule. Like the other guys said, once you lose your physical talents, your ability to execute the technique goes down. While you might still execute the technique, they won't be nearly as effective because you will have lost some of that natural talent.
This is another arguement altogehter; this is the arguement that once you know how to ride a bike you can always ride a bike. I agree. Your other arguement was that you become better at riding a bike with age, which I don't agree with.
is this even a debate? an old Mosely fought a competitive and arguably won against a prime Cotto now imagine a prime mosely
The Shane Mosley that beat DLH would give Cotto an absolute flogging. The current crop of welterweights is massively overrated. Guys like Cotto, Margarito, Williams and yes even Mayweather would have all been soundly defeated by the welters of the late 90's.
While a prime Mosley might beat Cotto. It does not change the fact that Cotto did beat a pretty game Shane. Dont kid yourselves Cotto won that fight by a margin. It was not as close as people make it out to be. It's one of those fights thats competitive but at the end of almost every round Cotto did just enough to take that round. Very close fight throghout but scoring wise Cotto took it by about 2-3 points.